Indole → HCID 68783528, compound

HRID 1847284Notes

Reaction equation

HRID 1847284 reaction equation
[CH2:1]([O:5][C:6]([C:8]1[N:13]=[C:12]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:11]2[C:20]([CH2:23]Br)=[N:21][S:22][C:10]=2[C:9]=1[O:25]C(=O)C(C)(C)C)=[O:7])[CH2:2][CH2:3][CH3:4].[NH:32]1[C:40]2[C:35](=[CH:36][CH:37]=[CH:38][CH:39]=2)[CH:34]=[CH:33]1.[H-].[Na+].O>CN(C=O)C>[CH2:1]([O:5][C:6]([C:8]1[N:13]=[C:12]([C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=2)[C:11]2[C:20]([CH2:23][N:32]3[C:40]4[C:35](=[CH:36][CH:37]=[CH:38][CH:39]=4)[CH:34]=[CH:33]3)=[N:21][S:22][C:10]=2[C:9]=1[OH:25])=[O:7])[CH2:2][CH2:3][CH3:4]

Participants

6

Reactant 4

HCID 798IndoleHCID 962WaterHCID 24758Sodium hydrideHCID 68628857HCID 68628857, compound

Product 1

HCID 68783528HCID 68783528, compoundYield 14.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 3-bromomethyl-7-(2,2-dimethyl-propionyloxy)-4-phenyl-isothiazolo[4,5-c]pyridine-6-carboxylic acid butyl ester (86.1 mg) in DMF (0.85 mL) at 0° C. was added indole (39.9 mg) and 60% NaH (13.6 mg). The reaction mixture was allowed to warm up to r.t. and stirred for 2 h before water (20 mL) was added. The mixture was extracted with EtOAc (4×20 mL). The combined organic phases were washed with brine and water, dried over MgSO4, and concentrated in vacuo. The residue was purified by flash chromatography on silica gel. Eluting with 1-50% EtOAc/hexanes gave the title compound (11 mg) as a white solid: MS (m/z) 458.2 (M+1).

Workup

  1. additionwas added
  2. extractionThe mixture was extracted with EtOAc (4×20 mL)
  3. washThe combined organic phases were washed with brine and water
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash chromatography on silica gel
  7. washEluting with 1-50% EtOAc/hexanes

Sources & evidence

ORD record
ord-ddd13ecf7575460d8d7f017b29457ba3
Source dataset
uspto-grants-2015_02
Patent number
US08952160B2

Reaction notes

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